Flying Machine Mimics Graceful Swimmers

When it comes to the skillful art of flight, insects must be doing something right. About 350 million years ago, they were the first life on Earth to achieve lift off. Fast-forward to the 21st century and scientists and engineers realize that flying like an insect is harder than it looks. In particular, the motion of insect wings lends little stability to the object itself. So, many prototype flying machines meant to mimic a flying insect often tumbled through the air like a somersaulting astron...